GeForce 830M vs GeForce GT 130

Intro

Compare all of that to the GeForce GT 130, which has core clock speeds of 500 MHz on the GPU, and 250 MHz on the 768 MB of DDR2 memory. It features 48 SPUs as well as 24 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M		25 Watts
GeForce GT 130		75 Watts
	Difference: 50 Watts (200%)

Memory Bandwidth

The GeForce 830M should theoretically perform a small bit faster than the GeForce GT 130 overall. (explain)

GeForce 830M		14400 MB/sec
GeForce GT 130		12000 MB/sec
	Difference: 2400 (20%)

Texel Rate

The GeForce 830M is much (approximately 37%) faster with regards to AF than the GeForce GT 130. (explain)

GeForce 830M		16464 Mtexels/sec
GeForce GT 130		12000 Mtexels/sec
	Difference: 4464 (37%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce 830M is the winner, but it probably won't make a huge difference. (explain)

GeForce 830M		8232 Mpixels/sec
GeForce GT 130		8000 Mpixels/sec
	Difference: 232 (3%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the max amount of information (in units of megabytes per second) that can be moved past the external memory interface within a second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.